551533120 has 28 divisors (see below), whose sum is σ = 1313339004. Its totient is φ = 220613120.

The previous prime is 551533069. The next prime is 551533139. The reversal of 551533120 is 21335155.

It can be written as a sum of positive squares in 2 ways, for example, as 161391616 + 390141504 = 12704^2 + 19752^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861451 + ... + 862090.

Almost surely, 2^551533120 is an apocalyptic number.

It is an amenable number.

551533120 is an abundant number, since it is smaller than the sum of its proper divisors (761805884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551533120 is a wasteful number, since it uses less digits than its factorization.

551533120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723558 (or 1723548 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 551533120 is about 23484.7422808938. The cubic root of 551533120 is about 820.0818478682.

Adding to 551533120 its reverse (21335155), we get a palindrome (572868275).

The spelling of 551533120 in words is "five hundred fifty-one million, five hundred thirty-three thousand, one hundred twenty".